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Functions/Subroutines</h2></td></tr>
<tr class="memitem:ac8be2c24bb08d1a46d9b9f941c2f8221"><td class="memItemLeft" align="right" valign="top">integer(fgsl_int) function&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="deriv_8finc.html#ac8be2c24bb08d1a46d9b9f941c2f8221">fgsl_deriv_central</a> (f, x, h, result, abserr)</td></tr>
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<tr class="memitem:ae36c355d73cf6e494e5bf2ce531ff400"><td class="memItemLeft" align="right" valign="top">integer(fgsl_int) function&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="deriv_8finc.html#ae36c355d73cf6e494e5bf2ce531ff400">fgsl_deriv_forward</a> (f, x, h, result, abserr)</td></tr>
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<h2 class="groupheader">Function/Subroutine Documentation</h2>
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          <td class="memname">integer(fgsl_int) function fgsl_deriv_backward </td>
          <td>(</td>
          <td class="paramtype">type(fgsl_function), intent(in)&#160;</td>
          <td class="paramname"><em>f</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(in)&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(in)&#160;</td>
          <td class="paramname"><em>h</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(out)&#160;</td>
          <td class="paramname"><em>result</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(out)&#160;</td>
          <td class="paramname"><em>abserr</em>&#160;</td>
        </tr>
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          <td></td>
          <td>)</td>
          <td></td><td></td>
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          <td class="memname">integer(fgsl_int) function fgsl_deriv_central </td>
          <td>(</td>
          <td class="paramtype">type(fgsl_function), intent(in)&#160;</td>
          <td class="paramname"><em>f</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(in)&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(in)&#160;</td>
          <td class="paramname"><em>h</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(out)&#160;</td>
          <td class="paramname"><em>result</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(out)&#160;</td>
          <td class="paramname"><em>abserr</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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          <td class="memname">integer(fgsl_int) function fgsl_deriv_forward </td>
          <td>(</td>
          <td class="paramtype">type(fgsl_function), intent(in)&#160;</td>
          <td class="paramname"><em>f</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(in)&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(in)&#160;</td>
          <td class="paramname"><em>h</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(out)&#160;</td>
          <td class="paramname"><em>result</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">real(fgsl_double), intent(out)&#160;</td>
          <td class="paramname"><em>abserr</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
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